Perpetual calendar



PERPETUAL CALENDAR. APPLICATION FILED DEC. 20, 192|.

8 9 I0 Il I2 I3 I4 I5 I6 I7 I8 I9 20 2I Emme YEAR m une 29 3o 3| WITH MONTH -/"l3 use Reu Hennes FOR JAH. sf FEB. |N LEAP (RED) YEARS.

'Im/@M1511 William e er. /w f i: f" l Patented Nov. 14, 1922.

WILLIAM SEIFERT, OF kSCI-I}}]'lE1C'ADY, NEW YORK.

PERPETUALCALENDAR.

Application led December 20, 1921. Serial No. 523,752.

To all whom 2f-may concern:

Be it 'known' that I, xVILLIAM Serenna?, a citizen Of the United States, residing at Schenectady, county of Schenectady, State .Of New York, have invented certain new and useful Improvements in Perpetual Calendars, of which the following is a speciiication.

The present invention relates to perpetual calendars, particularly those' of the type adapted to be arranged on a pencil, pen, or other cylindrical device,y and has for its object to provide a new and improved structure and arrangement in a calendar of this character.

For a consideration oi what l believe to be novel and my invention, attention, isv directed to the accompanying specification and the claim appended thereto.

In the drawing, Figxl is a side elevation showing a pencil provided with a calendar embodying my invention; Fig. 2 is a developed view of the cylindrical members which comprise the calendar, and F ig. 3 is a sectional view showing` the calendar arranged on a pencil holder.

Referring to the drawing, my calendar comprises three cylindrical parts or portions 5, 6 and 7. The parts or portions 5 and 7 are fixed and the part or portion (i which lies between them is in the form of a cylindrical sleeve which is free to turn but is held from axial movement.

The part 5 is divided into seven spaces by transversely extending lines 8 and in these spaces are arranged the names of the twelve months of the year in the order shown, viz. May, January and October; April and July; September and December; J une 5 February, March and November; and August.

The part 6 is divided into seven vertical columns by transversely extending lines 9 and into a plurality of circumferential rows by lines 10. Lines 9 have the same spacing as do lines 8. The circumferential row next adjacent part or portion 7 contains the names of the days of the week in its seven spaces. The other rows contain the years arranged in numerical order, leap years being put down in two successive spaces. The numbers of the years are arranged in the irst row, then step up into the next row and so on for as many rows as it is desired to supply years. The calendar is shown as beginning with the year 1921 and reading the numbers around it will be seen that in what may be considered the first row,vi. e., the row next to the days `or' the week are the years 192i, i922, 192s, 192e, (in red), 192i, '1925, 1926. Theyears then step up into the next row wherein is .found 1927, 1928 (in red). 1928, i929, ieee, resi, i932 (in red). The next row contains 1932, 1933, 19311, 1935, 1936 (in red), 1936, 1937. In the same manner there may be additional rows as found desirable.

. The part or portion 7 is divided by transversely extending lines 11 and circumferentially extending lines l2 into rows oil seven spaces each containing the numbers 1 to 31 in order, being the days of the months. Below this is a space 13 containing` directions for the use of the calendar'. In the present instance, it is assumed that the fig? ures and names are black, with the exception of leap years which occur twice, the irst time in red and the second time in black and in Fig. 2 .l have indicated the red years by larger numerals marked with a star. It will be understood, however that this is only by way of example and that any suitable distinguishing arrangement may be used.

1n use it is only necessary to turn the cylindical part or portion 6 to bring` the particular year in line with the particular month, the red years being used for January7 and February. The portion 7 in connectioii with the days of the week on portion 6 form a calendar for the particular month. in the present inst-ance in Fig. 2, the calendar is set for the month of December, 1921, the first day of the month being Thursday, and the four Sundays occurring on the 4th, 11th, 18th, and 25th.

It will be understood that my` improved calendar may be put on a special cylindrical holder or carrying member or it may be pui on a pencil, a pen, a pencil holder or other device. In the present instance l have shown it in Fig. 1 arranged on a metallic lead pencil 15 and in Fig. 2:3 arranged on a pencil holder 1G. The parts or portions G and 7 may be formed from any suitable material such as Celluloid, embossed paper, or the like and it will be seen from 3 that the adjacent ends oii parts or portions 5 and 7 form shoulders which serve to hold part or portion 6 from axial movement. Part or portion 6 may be arranged so there is more or less friction which tends to prevent its turning easily so that it Will stay in any adjusted position.

It Will be seen that my improved calendar is very simple in structure, comprising but three parts or portions and only one movable part, and that to use it requires no complicated adjustments, it being only necessary to turn the cylinder 6 to bring the year into line With the month. This means that the calendar is thoroughly practical for use by every one, for it requires no effort, skill or study to use it. Furthermore, it may be made small and compact so it takes up but little room in an axial direction and it can be manufactured at a lovv cost. As is obvious, the calendar may be manufactured as a part of a pencil, pen or the like or it may be supplied separately and applied as an accessory.

In accordance With the provisions of the patent statutes. I have described the principle 0f operation of my invention, together With the apparatus which I now consider to represent the best embodiment thereof, but I desire to have it understood that the apparatus shown is only illustrative and that the invention may be carried out by other means.

Whatv I claim as new and desire to secure by Letters Patent of the United States, is

The combination with a cylindricalcarrying member of a band fixed thereon divided into seven spaces containing the names of the months of the year, the first space having May in it, the second space January and October, the third space April and July, the fourth space September and Decemberf the fifth space June, the sixth space February, March and November and the seventh space, if-iugust, a second band fixed on the carrying member in spaced relation to the first and divided into circumferential rows each having seven spaces, the spaces containing the figures l to 3l inclusive, the figure l being in line with May .on the first band, and a third circumferentially adjustable band arranged on the carrying member between the `first tWo bands, said third band being divided into a plurality of circumferential rows of seven spaces each, the roW adjacent the second named band containing the days of theweelr and the other rows containing the years, leap years occurring twice and in distinctive figures whereby the calendar may be set by adjusting a single bandA only.

In Witness whereof, I have hereunto set my hand this 15th day of December, 1921.

WILLIAM SEIFERT. 

